A LONG-SHORT, SINGLE-INSTRUMENT trend-continuation strategy on XRPUSDT.BINANCE (USD-M perpetual, DAILY bars) whose differentiator is an OPEN-INTEREST CONFIRMATION filter applied to the factory's one repeatedly-validated edge family (momentum/trend). It is the deliberate, analyst-endorsed RELOCATION of the OI-confirmation mechanism that failed twice on Hyperliquid: the HL OI strategies died on a structural data-coverage wall (HL OI history covers only a recent ~7-week tail), and the analyst's explicit note was to 'target a venue/symbol with verified multi-year OI coverage (e.g. Binance USD-M majors where the OI history is deep).' This does exactly that, on a liquid Binance USD-M major (XRP) with deep OHLCV AND deep OI history, so the walk-forward windows and the held-out recent tail span genuine multi-regime data — addressing the recent-regime NON-GENERALIZATION that killed the short-window HL impulse strategy. It is also a CONTINUATION (confirmation) design, the opposite polarity of the failed HL OI-divergence FADE, and it uses the trend-cross exit geometry of the validated trend family — NOT the inverted small-TP/large-stop payoff that broke the COIN-M Bollinger strategy. It avoids every other landmine: NOT Deribit options (broken harness), NOT HL microstructure (data wall), NOT funding-carry on decayed majors, NOT a single-symbol intraday breakout/session effect. It fills the long/short direction bucket (14.6% vs the 85.4% long-only over-weight) and diversifies the portfolio on a near-unused DATA dimension (open interest), while choosing XRP specifically because the BTC/ETH/SOL pure-price time-series-momentum-LS siblings already exist — so this is not a duplicate of them. Tiny parameter count (4), with the OI filter expressed as a robust SIGN test (not a tuned magnitude) to avoid the sensitivity cliffs that sank prior strategies.